Participation is a pillar of sustainability, and so it is recognised in the 2030 Agenda. In the light of this, social dialogue, as a mechanism for participation, contributes to sustainability in many different ways. One example is its potential to build innovative approaches that enable progress with the formalisation of the informal economy. This process is one of the great challenges on the path to achieving decent work for all and more inclusive and sustainable societies, in line with the objectives of the 2030 Agenda.